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Finding the Fourth Proportional to 444,579.78, 666,871.39 and 107,619.88

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Solution

The fourth proportional to 444,579.78, 666,871.39 and 107,619.88 is: 161,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,579.78 : 666,871.39 = 107,619.88 : x
  2. Step 2: Convert to fraction form
    444,579.78/666,871.39 = 107,619.88/x
  3. Step 3: Cross multiply
    444,579.78x = 666,871.39 × 107,619.88
  4. Step 4: Simplify right side
    444,579.78x = 71,768,617,898.52
  5. Step 5: Solve for x
    x = 71,768,617,898.52/444,579.78
  6. Step 6: Final answer
    x = 161,430.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.